Book page holder



FIG. 1 is a left side elevational view of a book page holder showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a perspective view thereof; and

FIG. 6 is a bottom perspective view thereof. 

The ornamental design for a book page holder, substantially as shown and described. 